Bobbin win



2 Sheets-Sheet 1. v R. STEINER.

I BOBBIN WINDER.

(No Model.)

Patented May 23, 1882.

av W w? WA (No Model.) 2 Sheets-Sheet 2.

R. STEINER.

- BOBBIN 'WINDER.

No. 258,494. Patented May 23, 1882.

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llmrnn seam PATENT @rrrcn.

ROBERTHSTEINER', OF GRATZ, AUSTRIA.

BOBBlN-WINDERJ SPECIFICATION forming part of Letters Patent No. 258,494, dated May 23, 1882.

Application filed October 18, 1881. (No moat-1.)

To all whom it may concern:

Be it known that I, ROBERT S'rnnvnma citizen of Austria, residing at Gratz, in the Province of Steiermark and Empire of Austria, have invented new and useful Improvements in Bobbin-Winders, of which the following is a specification.

This invention relates to bobbin-winders for sewing-machines, and especially the Singer or other similar machines wherein the bobbinwinding mechanism is driven from the horizontal rotating machine-shaft, and it has for its object to allow the sewing mechanism to be thrown out of operation when the bobbinwinder is applied to use, and vice versa.

This invention is illustrated in the accompanyingdrawin gs, in which Figurel represents a side view. Fig. 2 is a sectional view, showing the arrangement of the pulley and its driving cog-wheel. Fig. 3 is a vertical cross-section on theline 00 00, Fig. 1. Figs. 4, 5, and (i are detail views hereinafter referred to.

Similar letters indicate corresponding parts.

The letter A designates the arm of a sewingmachine,forming the beari'ngfor the horizontal rotating shaft B, which gives motion to the sewing mechanism. To this shaft is fixed the fly-wheel O by means of its hub C, (see Fig. 2,) whichlatteris elongated,and on whichisplaced loosely a pulley, D, adapted to connect with the driving-pulley of the machine. The pulley D carries a cog-wheel, D, which, in this example, is integral therewith, and which is a medium for driving the bobbin-winding mechanism, as hereinafter explained. Next to the pulley D, on the elongated hub O of the flywheel, is placed a collar, E, which is fixed to the hub by a pin, a, passing through the shaft B as well as the hub, so that this pin serves also to fix the fly-wheel to the shaft. 'In the fiy-wheel O is arranged a set-screw, F, which is adapted to engage the pulley D by impinging against the side thereofopposite to the collar, and when this screw is tightened to e11- gage the pulley the machine-shaft is caused to share the motion of the latter through the flywheel 0; butwhen the screw is retracted to free the pulley the shaft remains stationary, the pulley turning independently thereof to operate the winding mechanism.

tained in that position.

The letter G designates a spindle, and H an arm, which receive and hold between them the bobbin to be wound, both being perforated to receive the pivots of the bobbin, and the spindle being, moreover, equipped with a spur engaging the bobbin and causing it to share the motion ofthe spindle. ThespindleGis formed with a transverse or circumferential groove, a, and is so arranged as to be capable of longitudinal as well as a revolving motion in its bearing, consisting of an arm, I, while it carries a pinion, t, at one end. The arm I, forming the spindle-bearing, is secured to the machine-arm A, as by a screw, 8, in such a position relatively to the drivingcogwheel Dthat by a longitudinal movement of the spindle the pinion can be thrown into or out of gear with the cog-wheel, and hence a revolving motion can be imparted to the spindle, or it can be left stationary, at will. A catch-pin, q, is arranged in the spindle-bearing I to engage the groove u of the spindle by entering such groove, and the relative positions of the groove and pin are such that when the spindle is set to admit the pin to the groove the pinion t is brought in gear with the cog-wheel D and re- The spindle, moreover, is subjected to the action of a spring, 0, having a tendency to throw it out of gear, so that when the spindle is released this takes place automatically. to force the spindle up against the bobbin. The inner portion of the spindle G is tapered, as at G, for the purpose of adapting the same to receive a grindstone, a reel, or othersimilar device; and in order to allow such device to be readily adjusted on the spindle the bobbinholding arm H is swiveled on a pivot, a, (see Fig. 4,) formed on the end of the spindle-bearing I, so that it can be swung to a lateral position away from the spindle, as indicated by Figs. 4 and 5, a screw, 1, Fig. 1, serving to keep the arm in its normal position.

The thread to be wound on the bobbin passes The spring 0 also serves through an eye, K, and thence over a segment, 5

What I claim as new, and desire to secure by Letters Patent, is

1. The combination, substantially as hereinbefore set forth, with the machine-shaft, of the fixed fly-wheel on such shaft, having an elongated hub, the loose pulley and its driving cog-wheel, arranged on such elongated hub, the collar fixed to the hub next to the loose pulley, the set-screw arranged in the fiy-wheel to engage the pulley, and the bobbin-winding mechanism adapted to gear with the driving cog-wheel.

2. The combination, substantially as hereinbefore set forth,with the pulley and its driving cog-wheel, of the transversely-grooved bobbinholding spindle capable of longitudinal movement, the fixed pinion of the spindle, adapted to gear with the driving cog-wheel, the spring acting on the sliding spindle with a tendency ROBER'L STEIN ER.

\Vitnesses HANS GOTTAS, E. WENKELMANN. 

